Specification Sheet

Product Name
Imidazole BioUltra, ≥99.5% (GC)

Product Number
56749

Product Brand
SIGMA

CAS Number
288-32-4

Molecular Weight
68.08

Test

Specification

APPEARANCE (COLOR)Colorless or White
APPEARANCE (FORM)Powder or Crystals
TITRATION (NT) HCLO4 0.1M99.5 - 100.5 %
PURITY (GC AREA %)≥ 99.5 %
WATER≤ 0.2 %
RESIDUE ON IGNITION≤ 0.05 %
INFRARED SPECTRUMCONFORMS TO STRUCTURE
METAL TRACE ANALYSIS (ICP)CORRESPONDS TO REQUIREMENTS
ALUMINIUM (ICP)≤ 5 mg/kg
BARIUM (ICP)≤ 5 mg/kg
BISMUTH (ICP)≤ 5 mg/kg
CALCIUM (ICP)≤ 10 mg/kg
CADMIUM (ICP)≤ 5 mg/kg
COBALT (ICP)≤ 5 mg/kg
CHROMIUM (ICP)≤ 5 mg/kg
COPPER (ICP)≤ 5 mg/kg
IRON (ICP)≤ 5 mg/kg
POTASSIUM (ICP)≤ 50 mg/kg
LITHIUM (ICP)≤ 5 mg/kg
MAGNESIUM (ICP)≤ 5 mg/kg
MANGANESE (ICP)≤ 5 mg/kg
MOLYBDENUM (ICP)≤ 5 mg/kg
SODIUM (ICP)≤ 50 mg/kg
NICKEL (ICP)≤ 5 mg/kg
LEAD (ICP)≤ 5 mg/kg
STRONTIUM (ICP)≤ 5 mg/kg
ZINC (ICP)≤ 5 mg/kg
ARSENIC TRACES (MHS-AAS)≤ 0.1 mg/kg
TOTAL SULFUR AS SO4 (ICP)≤ 50 mg/kg
CHLORIDE (CL)≤ 50 mg/kg
SOLUBILITY (METHOD)0.204 G IN 30 ML H2O (0.1 M)
APPEARANCE (SOLUTION)CLEAR COLORLESS
PH (SOLUTION)9.5 - 11.0
RESIDUE (FILTER TEST)NO RESIDUE
UV - ABS. AT 260 NM≤ 0.10
UV - ABS. AT 280 NM≤ 0.10
RECOMMENDED RETEST PERIOD42 MONTHS

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